The HD-DA 15mm F/4 ED AL Limited Lens from Pentax is a compact prime lens that offers a 35mm-equivalent lens with a focal length of 23mm, making it ideal for capturing images with a wide-angle perspective. Its optical design features a variety of hybrid aspherical elements and extra-low dispersion glass to minimize distortion and chromatic aberrations, and it can be used for shooting with outdoor and indoor environments. A high-quality multi-layer coating has been applied to the lens elements to minimize ghosting and flare for enhanced color fidelity, clarity, and contrast. A seven-blade diaphragm and a rounded shape contribute to a more aesthetic out-of-focus effect.

Pentax K Mount Compatability 

Aperature Range: f/4 to f/22

23mm (35mm Equivalent) 

Low Distortion Wide-Angle Design

Quick-Shift Focus System

Super Protect Lens Coating

The lens features an SP Protect coating, which can protect it from dirt and oil.

Its compact form factor also allows it to be operated using the Quick-shift focus system, which provides a manual focus control. 

The Pentax HD-DA15mm f/4 ED AL lens features a limited-lens optical design that utilizes a hybrid aspherical component and a low dispersion glass.

It delivers greater clarity and sharpness while reducing ghosting and flare.

The versatile HD-DA 15mm f/4 ED AL lens from Pentax provides a focal length of 23mm, which is equivalent to a 35mm lens. 

The HD-DA lens from Pentax features a variety of key features, such as an 86-degree view angle, 8 elements in each of 6 groups, a built-in autofocus system, and a minimum focusing distance of 7.1 inches.

It also has a 49mm filter thread.

In addition, it can be compatible with the K Lens Mount and the APS-C format. Its maximum aperture of f/2.8 and minimum coverage of f/22 make it ideal for shooting with mixed cameras.

Limited 1-Year Manufacturer Warranty